Coordinate Frame rotation (geog2D domain)
Derivation is more precise, but no evidence that accuracy is better than Ain el Abd to WGS 84 (3). OGP recommends using Ain el Abd to WGS 84 (3).
KOC
2020-03-14
Oil and gas exploration and production.
Used by Saudi Aramco when area of interest crosses UTM zone boundary. Adopted by partners for Core Venture 1 (South Ghawar) area.
Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
-47090.67 463747.94
-141589.51 377856.35
46789.3 550321.77
46.54 28.53
48.48 30.09
Definition: OGC Well Known Text
PROJCS["Ain el Abd / Aramco Lambert", GEOGCS["Ain el Abd", DATUM["Ain_el_Abd_1970", SPHEROID["International 1924",6378388,297], TOWGS84[-85.645,-273.077,-79.708,-2.289,1.421,-2.532,3.194]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4204"]], PROJECTION["Lambert_Conformal_Conic_2SP"], PARAMETER["latitude_of_origin",25.08951], PARAMETER["central_meridian",48], PARAMETER["standard_parallel_1",17], PARAMETER["standard_parallel_2",33], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","2318"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Ain el Abd / Aramco Lambert", BASEGEOGCRS["Ain el Abd", DATUM["Ain el Abd 1970", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4204]], CONVERSION["Aramco Lambert", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",25.08951, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",48, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",17, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",33, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",0, LENGTHUNIT["metre",1], ID["EPSG",8826]], PARAMETER["Northing at false origin",0, LENGTHUNIT["metre",1], ID["EPSG",8827]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Oil and gas exploration and production."], AREA["Saudi Arabia - onshore."], BBOX[16.37,34.51,32.16,55.67]], ID["EPSG",2318]]], TARGETCRS[ GEOGCRS["WGS 84", ENSEMBLE["World Geodetic System 1984 ensemble", MEMBER["World Geodetic System 1984 (Transit)"], MEMBER["World Geodetic System 1984 (G730)"], MEMBER["World Geodetic System 1984 (G873)"], MEMBER["World Geodetic System 1984 (G1150)"], MEMBER["World Geodetic System 1984 (G1674)"], MEMBER["World Geodetic System 1984 (G1762)"], MEMBER["World Geodetic System 1984 (G2139)"], ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[2.0]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Horizontal component of 3D system."], AREA["World."], BBOX[-90,-180,90,180]], ID["EPSG",4326]]], ABRIDGEDTRANSFORMATION["Transformation from unknown to WGS84", METHOD["Position Vector transformation (geog2D domain)", ID["EPSG",9606]], PARAMETER["X-axis translation",-85.645, ID["EPSG",8605]], PARAMETER["Y-axis translation",-273.077, ID["EPSG",8606]], PARAMETER["Z-axis translation",-79.708, ID["EPSG",8607]], PARAMETER["X-axis rotation",-2.289, ID["EPSG",8608]], PARAMETER["Y-axis rotation",1.421, ID["EPSG",8609]], PARAMETER["Z-axis rotation",-2.532, ID["EPSG",8610]], PARAMETER["Scale difference",1.000003194, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Ain_el_Abd_Aramco_Lambert", GEOGCS["GCS_Ain_el_Abd_1970", DATUM["D_Ain_el_Abd_1970", SPHEROID["International_1924",6378388.0,297.0]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Lambert_Conformal_Conic"], PARAMETER["False_Easting",0.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",48.0], PARAMETER["Standard_Parallel_1",17.0], PARAMETER["Standard_Parallel_2",33.0], PARAMETER["Latitude_Of_Origin",25.08951], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Ain el Abd / Aramco Lambert", "base_crs": { "name": "Ain el Abd", "datum": { "type": "GeodeticReferenceFrame", "name": "Ain el Abd 1970", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4204 } }, "conversion": { "name": "Aramco Lambert", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": 25.08951, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": 48, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 17, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 33, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8827 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 2318 } }, "target_crs": { "type": "GeographicCRS", "name": "WGS 84", "datum_ensemble": { "name": "World Geodetic System 1984 ensemble", "members": [ { "name": "World Geodetic System 1984 (Transit)", "id": { "authority": "EPSG", "code": 1166 } }, { "name": "World Geodetic System 1984 (G730)", "id": { "authority": "EPSG", "code": 1152 } }, { "name": "World Geodetic System 1984 (G873)", "id": { "authority": "EPSG", "code": 1153 } }, { "name": "World Geodetic System 1984 (G1150)", "id": { "authority": "EPSG", "code": 1154 } }, { "name": "World Geodetic System 1984 (G1674)", "id": { "authority": "EPSG", "code": 1155 } }, { "name": "World Geodetic System 1984 (G1762)", "id": { "authority": "EPSG", "code": 1156 } }, { "name": "World Geodetic System 1984 (G2139)", "id": { "authority": "EPSG", "code": 1309 } } ], "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 }, "accuracy": "2.0", "id": { "authority": "EPSG", "code": 6326 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4326 } }, "transformation": { "name": "Transformation from unknown to WGS84", "method": { "name": "Position Vector transformation (geog2D domain)", "id": { "authority": "EPSG", "code": 9606 } }, "parameters": [ { "name": "X-axis translation", "value": -85.645, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -273.077, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -79.708, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": -2.289, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 1.421, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -2.532, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 3.194, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
2318=PROJCS["Ain el Abd / Aramco Lambert",GEOGCS["Ain el Abd",DATUM["Ain_el_Abd_1970",SPHEROID["International 1924",6378388,297],TOWGS84[-85.645,-273.077,-79.708,-2.289,1.421,-2.532,3.194]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4204"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",25.08951],PARAMETER["central_meridian",48],PARAMETER["standard_parallel_1",17],PARAMETER["standard_parallel_2",33],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2318"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=25.08951 +lon_0=48 +lat_1=17 +lat_2=33 +x_0=0 +y_0=0 +ellps=intl +towgs84=-85.645,-273.077,-79.708,-2.289,1.421,-2.532,3.194 +units=m +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=25.08951 +lon_0=48 +lat_1=17 +lat_2=33 +x_0=0 +y_0=0 +ellps=intl +towgs84=-85.645,-273.077,-79.708,-2.289,1.421,-2.532,3.194 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2318, 'EPSG', 2318, '+proj=lcc +lat_0=25.08951 +lon_0=48 +lat_1=17 +lat_2=33 +x_0=0 +y_0=0 +ellps=intl +towgs84=-85.645,-273.077,-79.708,-2.289,1.421,-2.532,3.194 +units=m +no_defs +type=crs', 'PROJCS["Ain el Abd / Aramco Lambert",GEOGCS["Ain el Abd",DATUM["Ain_el_Abd_1970",SPHEROID["International 1924",6378388,297],TOWGS84[-85.645,-273.077,-79.708,-2.289,1.421,-2.532,3.194]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4204"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",25.08951],PARAMETER["central_meridian",48],PARAMETER["standard_parallel_1",17],PARAMETER["standard_parallel_2",33],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2318"]]');